Calculating-machine.



A. C. GRNELISON. UALGULATING MAUHINE. APPLICATION FILED MAY 13, 1908, 927,452.

9 T mm @w 1 m mw m M .mum- M m l xu W y r.. J i -I mf d u -n W .obu 5E7uu9nf .-.1T Lm HOU C .WQ/ J". a 5 5 7 nu E I 6 P @n mb d wn U Nn n w M .y B n: 2 l a b m b l 3 A. C. GORNELISON'.

- Patented July a 1909.

v A. c. CORNELISON.l CALGULATING MACHINE.

APPLIOATION FILED MAY 113, 1908. 927,452. f Patented July 6, 1909.

6 SHEETS--SHEET 3.

A. C. GORNELISON.

GALGULATING MAGHINE.

APPLIQATION FILED ,un 1.3, 190e.

Patented July 6, 1909.

GSHEBTS-'SHEET 4.

6 Q N Q @l .no B n n@ wm. 7#

A. c. GQRNELISON.

GALGULATING MACHINE.

APPLICATION FILED MAY 13, 1908.

Patented July 6, 1909.

SHEETS-SHEET 5.

[NVE/Wwe Manley y Apc. GORNBLISON.. GALGULATING MACHINE, APPLICATION FILED MAY 13, 1908.

Patented July 6, 1909.

6 SHEETS-SHEET 6.

. Figure 1 is a top plan view of my im- ALEXANDER C. CORNELISON, OF HIGHLAND FALLS, NEW YORK.

CALCULATING-MACHINE.

i Specification of Letters Patent.

Patented July c, 199e.

yApplicatlon mcd lay 13, 1908. Serial No. 432,691.

l To all whom 'it may co2/inem:

Be it known that I, ALEXANDER C. Con- NELisoN, a citizen of the United States, residing at Highland Falls, in the county of Orange and State of New York, have invented certain new and useful Improvements in Calculatin -Mac'hinesg and I do hereby declare the ollowin t'o'be a full, clear, and exact desc'ri tion o the invention, such as will enable et ers skilled in the art to which it appertaas to make and use the same, reference beingY had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this s ecification'.

This invention relates to new and useful improvements in calculating machines and the object in view'is to produce an apparatus construction, ments of of this nature which will be simple in construction, efficient operation and so arranged that various calculations in addition, subtraction, multiplication or. division may The invention comprises various details of combinations and arrangearts'which will be hereinafter f ull. described and. then specically defined in t e appended claims.

I illustrate my invention in the accompanying drawings, in which :--v

proved calculating machine, parts of vthe casing being broken away to better illustrate operative features'fthe apparatus. Fig. 2 is a. vertical sectional view taken on line 2-2 of Fig.. 1 looking in 'the direction lof the arrow. Figs.; 2'L and 2b are detail sectional views.' AFi 3 is a vertical sectional view on line 3-3 o Fig. 1,.also looking in the direction of vthe'arrows o posite the ends of line 3-3. Fig. '3* is a etailed view showing a movable side and series of ated thereby. Fig, 4 is a ongitudinal vertical section on line 444 of Fig. 1. Fig'. 4

Fi 5 is a transverse sec- `ig. 2. Fig. 5% is a detail sectional view on line 5-5 of Fig. 3. Fig. 6 is an enlarged detailV perspective view of a segment'mounted upon the main operatin shaft and carrying a springressed paw Fig.' 7 is a detail sectiona View `through the casing and means for locking the operating shaft. Fig. 8 is a detail view showing means for locking of the pawl throwin member. Fig. 9 is an edge view 'of the et'ails shown in Fig. 8, partially in awl guides actusection. Fi l0 is a bottom plan view of t-he details s own in Figs. 8 and 9. Fig. 11 is a sectional view through the casing and a portion of the handle fixed to the crank shaft and showing the locking means for holdin the latter. Fig. l2 is a sectional view t rough a shaft, showing in elevation 'one of the multiplier or quotient wheels, and Fig. 13 is a sectional view taken at right angles to the view shown in Fig. 12. Figs. 14, 15 and 16 are detail views of parts of the invention.

Reference now being had to the details of the drawings by characters lof reference, 1 designates the casing of the lower portion of the apparatus and 2 the upper casing, which has a` movement independent Aof the lower casing.

3-3 designate standards having apertures in which the hollow shafts 5 slide, and G-.S designate rods, shown clearly in Fig. 5 of the drawings, 4which extend through apertures in the standards 7 upon the left side of the frame of the apparatus and held in place by means ofthe nuts 8. Said standards are fixed to the lower casing 1 which latter,

for convenience, will be called the keyboard containing portion of the apparatus and is stationary, while the rods 6 telescope .within the hollow shafts 5 which serve as guides 'iov for said rods 6. It will be noted that said rods each have an end passing througha standard 7 and a nut 8 mounted on the threaded end thereof, thereby securelV holding the rod in place. The hollow s afts 5 have each a contracted end which is passed y through the wall of the upper casing and a nut E is fitted to the threaded end of said hollow shaft'. Said shaft 5 also passes through an opening in the standard 3'- through which it has a free movement. .The

opposite or o en end of each shaft 5 which key 10 and a spring 11, shown in Fig. '2 of 1 is'- provided with a series of the drawings, bears against each of said keys and tends to normally hold the end of thekey in engagement withv a groove formed in plates 10c within the casing 1.

'lhe inner'end of each of said bars 9 is beveled, as shown at `3a in Fig. 5 of thev drawings, and the inner throw of the bars is limited by the lengths of the 'slots in the casing ,i 1 in which the keys '10 are mounted.v

14-'14 designate a series of pawl guides,

each of which passes through an aperture iny which'the beveled portions of the bars areadapted to contact as they are moved forward to throw the pawl guides in operative positions, 'as shown in Fig. 2 of thedrawings. e v

An operatin 21, is journale 1n the oppositeside walls of thecasing, as shown clearly in Fig. 4, of the drawings, and has a crank 22 fixed thereto;

Loosel mountedlupon said shaft 21 is a se-` ries o wheels, designated by numerals 23, each of which in the present instance is divided into forty equalspaces by pins 24v p projecting 'from' corresponding faces thereof adjacent to its periphery. A shaft 25,l

mounted in the o posite walls of the casing, carries a series o pawls 26,' each of 'which is normally'held by 'means' of a spring 27vv in the path of the pins 24, as shown clear-ly in Fig. 2 of the drawings, the purpose of said pawls, being to normally hold the wheels 23 from rotationas theshaft-2l is operated by Vthe crank handle, said/wheels23, however,

being-adaptedlto rotate upon the shaft by mechanism which will overcome the tension of the springs 27 and which mechanism will be presently described. The circumference of each of the wheels 23-is also'divided into forty equal spaces,saidjs aces being' numbered successlvely- 0 to -9` ountimes, except the wheel-farthest toward the left which is" numbered D to 39 successively, thus causing the eleventh wheel to. show two spaces, and

- of the bars 9 hasa. series o it will be noted that the up ver edge of each j numeralsl from 0 to 9 appearing thereon and visible through theV apertures 108, as the bars .are moved backward and forward, each numeral upon thebar .9. having a corresponding pawlv guide14. l

U on reference to Fig. 2 of the drawings, it w1 l be noted that nine of the pawl gui es shaft, designated by. numeralA have been raised to operative positions by the forward movement to its limit of one of the bars 9 and, in \their operative positions, the upper-ends of the pawl guides just clear the circumferences of the wheels 23 which will allow the ,upper casing 4to move back and forth without interference from said pawl guides. `When the bar 9, which hasl raised the guides to their operative positions,

is returned to its farthest outer limit, the springs bearing against said guides will return each to itsnormal position, as shown in Fig. 4. Itwill be noted upon reference to Fig. 4 of the drawings that said pawl guides are not positioned directly underneath the wheels-23 but rather to one side thereof.

`Mounted upon the loperating shaft 21 is a series of pawl carrying segments 30, one,

positioned to the right of each wheel 23.

The first twopawl carrying segments tothe right are keyed tothe shaft upon which they are mounted in such manner as to canse them to rotate'with said shaft without lost motion for the reason that nothing'can be carried tothe right or to the unit wheel, and

each pawl carrying segment is provided of the drawings, and upon the convexed end of each' segment is fixed ya spring 33'wyhich normally holds the pawl 31 out of the pathsl of the pins 24 `'carried bythe wheel. 23.

Each of the pawls 31 has a contracted por .tion 34 which is .Wedge shaped 'in cross'section and is desi I ed to contact with one or more of the beve ed edges of the pawl guides 14 whenv raised to their operative positions as lthe shaft carrying said segments is ro.

tated. As the shaft is rotated with the with a pawl'31 pivotally mounted upon a pin 32, a detail of which is shown in Fig. 6'

eled portion 34 of'the pawl carried thereby,

will contact with the upper beveled edges" of the pawl guides 14 and cause the pawl to the pins 24 upon the adjacent wheel 23, thus carrying the latter with the pawl segment I until the pawl has passed the last oneyof.

awl guides, after which"the "-g the raised spring 33 wlll return the pawl34 toits nor-" mal position which is out of the paths said pins 24.l It will be -noted thatfthejpawl j.

guides 14 are ofvsuch'a width thatfeachone 120` l will hold the pawl 31 in .engagement with ,a

pin 24 to rotate the wheelone space.'." 'lfhe f, positive engagement of the pawl 31withthe f pins of the wheel 23, as thejshaftl isjrrqv tated,1 will overcome the tension-of the` spring 27 Vwhich bears againsty the awl and move the wheel. A fter the paw ,'31 has 'f assed .by the last -of the xpawl guides, 'a'f, urther rotary lmovement tohthe wl`1eevl23v` .will be arrested by the pawl 26 which j hands of a clock, the first segmentto the l right ,of the first or unit wheel 23, the bev- 11olv tilt upon its pivotand be thrown against f the tension of the spring 33 between two of i mally thrown between the pins 24 by the 40 which is positioned in the path of the.

spring 27. After the wheel ,23 has been wen a partial rotary movement, determined y the number of pawl guides which have been previously raised to operative positions,

a numeral upon the circumference of the wheel 23 corresponding to the number of 'near each end of the shaft 21, and 38 designates an angled bail-shaped bar, the ends of which are pivotally mounted .at 39 in the walls of the u per casing and each arm of the bail-shape bar is provided with a cam cam tooth 37 and provided for the purpose of causing the bail-sha ed bar 38 to be raised each time the sha t 21 makes a complete revolution. The swinging bail portion of said bar 38 asses through a' pawl carrier 41 which is ii'ee to slide^i`lpon said bar 38 as the upper casing 2 is shifted inr one direction or the other. Said pawl car-- rier 41 `is adapted to be guided in its vertical movements by the plates 42, which are spaced apart and which are fixedv to the lower casing 1; A pin 43 is 'passed through apertures in the guide plates 42 and, when the pawl carrier 41 has been forced to its lowest position Aby the spring 44 which depresses the bar38, a lug 45 u on the pawl 46 will engage the pin 43 and orce the free vend of thepawl 46back and out of the path of the ratchet wheel 47, which is mountedf upon the shaft 48 journaled in the walls of the casing 2. Whenever the shaft 21 is given a complete revolution, the cam 31 coming in contact with the Acam 40 will cause the bailshaped membell 38 to be lifted and with it the-pawl carrier 41 and, as the pawl 46 upon said carrier rises to a certain height clear of the pin 43, the spring bearingagainst said pawl will cause the same to be thrown t'orward into en agement with the teeth of the ratchet whee 47 and, upon further upper movement, will cause an intermittent movement to be imparted to said wheel 47.

It 'will be noted, upon reference to Fig. 1 ofthe drawings, that the circumference of a cylindrical portion of the ratchet wheel bears, a series of numerals, these being from 0 to 9, and dividing the circmnference of the Wheel into as many equal spaces to indicate the number of'revolutions which the shaft 21 makes,

The mechanism for carrying from one wheel 23 of a low denomination to one cfa higher, order to the left is as follows z--It will be noted, upon reference to Fig. 1 of the drawnvs, that beveled lugs, designated by numera 50, project from the left face ofeach'wheel 23, there ,being four of said lugs 50 arranged "equi-distant, each being ten spaces apart, except the last wheel to the left which has onlyv one for operating the error signal. Pivotally mounted upon the bars51,

an end View of one being shown in Fig. 2 ofthe vdr'awings,'are the pawl guides 52 and Ybearing against each of said awl guides 52 f is a spring 53, a detail of which is shown in Fig. l0 ofthe drawings. The end of each pawl guide 52 is beveled as at 54 upon one y end thereof and said pawl guide 52 is normally held in the path of the beveled lugs 50 which project from the face of each 'wheel 23. As the Wheel 23 is rotated and one of the lugs 50 comes in contact with the pawl 52, the latter is thrown to the left in the path itlievf` rotating pawl 31 which is carried by the segment 30. After the pawl guide 52 has been ,thrown to the left by the lu 50, it is held in such position by means of t epbars 55, there being twoof these bars'of vsimilar construction and each mounted upon Aa pivot 56 carried' by the walls of the casing of the apparatus, and each rod is bail-shaped and each bar has arms near the ends of theshaft- 21, one of said arms upon each bar 55 being shown in Fig, .2 of the drawings. The free. 4,

end of each of said bars 55 has a cam pro- 951 jection-57 which, when the apparatus is in its start-ing position, is normally underneathl the cam tooth 37 and normally holds the barsin the position shown inF ig. 2 of the drawings, in-which the pins 58 carried by the bar 55 are heldabove the pawl guides 52. A spring'59, shown in Fig. 3 of the drawings, bears yieldingly against cach bar 55 and tends tocause the latter to tilt upon the piv ots 56 when the shaft 21 rotates and the cam tooth 37 is released from the cam projection 57. Each of the pins 58 has a coiled spring 60 bearing against the same, as clearly shown in the detail views, Figs. 8 and 9, and, when the outerv portions of the bars 55 are tilted down, said pins will be positioned against the edge of the pawl guide 52.l The tension of the spring 59 is sufficient to. cause the spring-pressed pin 58 to be thrown back into the aperture of the bar holding the same as the pin comes in contact with the upper edge guide 52 is thrown laterally by a beveled cam 50.50 that the pin will be free from the pawl guide 52, the spring 60 will throw the pin outward and down alongside the pawl guidev 52 and will hold the pawl guide iny a locked position in .the path of thepawl' 31.v

`the latter to make .a partial revolution,

When all of the pawls 31 has passed all of the Ipawl guides 52 and 14 and shaftl- 21 comes `to position of rest, the cam tooth 37 :of the' pawl guide 52 but, when said pawl will come in contact with the'cam projection 57 of the bar 55 and cause the latter to tilt,`

raising the pin 58 fromcontact with the pa-wl guide 52 and the ,springv V'vvhichbears against the latter vwill return/'it to its normal position.; V L

In ord' r that'allca'rrying from one wheel 23 to another-may be correctlyv done, it is necessary that'the pawls 3l `ofthe lower order should have passed all pawl `guides 52 and 14 at least one space in advance of 'the'.

awl 31 of the next higher order, that is rom'unitstens, hundreds, etc. This is acy j complished''by increasing the widths of the key slots in the pawl carriers 30 as the orders become higher. The pawlsl which act upon the units and tens are'always, no. .matter in which direction rotated, one space ahead lof the pawls of the hundreds wheel when passing pawl guides and this-in turn one space ahead of the pawl of lthe 'thousand l vmounted, 4whereas the `next adjacentvr paw-l wheel and so on. v 6 of .the drawings, it will be observed vrthat the Irey way 61, outlined by full'lines, -represents the'size vo f-'the segment carryin the." paw'l for operating upon the unit, o ten.-

wheel, there being no play intermediate saidv segment and the shaft 'upon`vl which* itf is carrying segmentV will havev av keylway or slot three times thewidth of th-one ,-to the I, extreme right so that, when the p'awl carrying segments are moved in either direction,l

' each pawl will vdrop. automatically 'behind the pawl of the neXt lower order. It will be.-

observed that,l by having the twogcomple'tei sets of pawl guides 52 upon opposite sides f shaft and pawls carried v thereby ar'e rotated ,of the wheels and twoI guide bars carrying spring-pressedpins, the lmachlne maybe worked with equal facility whether the op-v,` l erating shaft isrotated in lone-direction or the other. l14 l v v By the provision of the segments withkey slots ofvarying `widths or 4analogous means, the various'segments will fallv one behind anotheras the order becomes. higher from units-up,- no matter inwhich ,direction theV and which constitutes an important feature of thenpresent invention; Y i i The carrying mechanism for theratchet wheels 47 is'shown clearly in Fig. 2 of the drawings and in which the 'segment 62 is shown as loosely mounted upon a shaft 63- .55

and isheld normally in the position shown inFig. 2 by means of the spring 63 X.- .Said

' segment 62 has a single gear tooth '64pmjecting therefrom whichl is positioned in-the path ofthe single gear 4tooth 65 uponthe wheel 47. Pivotally mounted upon the se ,ment 62 is a spring-pressed pawl -66 Whic is adapted to engage the teeth of the ratchet wheel 47 of the next-higher order.4 It will thus b e notedy that the tooth ofthe Wbel 47 actuates thetooth 64 of "'thsfgnentgl Upon reference to Fig...

and carries the next wheel 47 one s aclse` t en around. When the tooth 65 has cleare tooth 64, the segment 62 with thepawl 66 will' return to their normalfpositlons under the tension of the springs vhearing against the same.

In orderto hold` thejtwo vcasings i. and in locked relation'.y With'each. other, one o1'l lt-hefhollow' bars 5 -is provided with notches in'which the upwardly extending portionl 70 of the shifting lever -71 i81- adapted tol be engaged, said lever' -371! being l pivotally .mounted 'u on ay rod 72;;and-kis provided with 'a 'suitable {ey-at itsouter end. .The operat'- ing shaft 21 isfheld in' a 'looked position by means of themechanism shown in lthe Ad'etailed viewsLFigs.- 3,-;..7,`f and 1 1, in which a bar l7 4 is shown' as-being pivotally mounted upon a pin 75 and'has a laterally projecting lug 75 thereon .which projects lthrough` an aperture in` ythe casing 25. and has'a vbeveled milled surfacev77 whloh isfconvenien'tly en-v gaged by thejfinger of an operator taking hold of the handleof the crank shaft. Said bar 74 has afse'cond laterally''projecting lug 78 having a lmitchell end1791adaptedto re- .74 and tends to normally ho dthebar 74 in.a locked' relationfwith reference to the .ma-nner s own clearly, in y,Figui 11 ofthe drawings.. A spring 81'is fastened to theV casing and bears yieldingly a ainst the bar lug of thecrank handle. When it is desired to rotatethe shaft the operator' by pressing-upuponjthe vhar 74 may throw the lug 7.8 outof-engagem'ent with the lug 80 thereby' allowing the' shaft to be rotatedin one loo direction or the other and the spring 81 will l 'retain the bar 74in this up er position with the/.lug l82 engaged inthe s ot'83 so that the Ishiftkey 73l cannot be depressed'ur'iti-l lthe bar .74' is again depressed' and the crank locked.A Before, however, it will bepossible for the bar 74to be rocked upon its pivot to release'the `'main operating shaft, it'will be 'necessarylthat the upright portion 70 of the.

- .2v of the drawings, lpivotally mounted upon .l a screw 88in the wallsof thecasing 2. The l upper end of'the'shifting lever 71 is hookfshape, as at 89,/and en ages overthe cross" piece 86 and, as the shi ting lever 71 is tilted ack upon' its pivot, said.`crosspiece with its" segment .84 are moved so that the slot 83 wil come-.in alinement withtheupwardly projeetinpgfend82, thus allowing said projje'ction to enter the slot so that the bar 74 may be lifted upon its pivot and the operating shaft 21 rotated only when the lever 70 is engaged in the notch in' the rod 5, thus locking the parts 1 and 2 in correct relation. When the upper casing 2 is shifted, the pawl carrier 41, which is held between the guide plates 42, slides on the horizontally disposed portion of the bar 38 and thus the pawl 46 will successively engage the various ratchet wheels 47.

The mechanism for clearingor bringing all of the wheels 23 to their original starting positions where only zeros will be displayed at the sight apertures 35 is illustrated in Figs. 1 and 4 of the drawings and in which, it will be noted, there is a recess .90 formed in the left faces of the wheels 23 and projecting into said recess is a stud 91. 9 2 is a key which is carried by the shaft 21 and fits loosely the slots in the pawl carrying segments 30 assembled on the shaft 21. The shaft 21 is adapted to have a slight longitudinal movement and is held in its normal position by means of a spring 93,.,shown clearlyY in Fig. 4 of the drawings. A clearing lever, designated by numeral 94, yis shown in Fig. 1 of the ydrawings asl being pivotally mounted upon a pin and has a key 96 at its free end, while intermediate its ends it has a beveled portion'97, shown clearly in Fig. 4 of the drawings which is adapted as the lever 94 is depressed to have a wedging action intermediate@ stripy 98 upon the side of the Casin 2-at the end of the shaft 21. As the shaft 21 is moved to theright by the depression of the lever 94,

the key 92 is moved partially out of the slot 61 and into the recess 90 formed in the hub of the wheel 23 adjacent thereto. When the shaft 21 is rotated by the crank handle 22, the key 92 will engage the stud 91 and rotate the wheels until they show zero at the sight aperture 35. When vthe key 94 is released, the spring 93 will-returnV the shaft 21 to its normal position. y

The mechanism for clearing the wheels 47 will be seen upon reference to Figs. 12 and 13 and in which the shaft 48 is provided with a transverse hole 99, in which a spring 100 is mounted and which is adapted to bear against a' pin 101, the tendency of said spring being to cause the Vpin 101 to project out of said hole beyond the circumference of the'shaft 48. A pin 102 is mounted in 'a hole inthe ratchet tooth part of the wheel 47 and feto slide a short distance. The

shaft 48 is normally held to oneside of the casing by a spring 103, shown in Fig. 1 of the drawings, so that the holes in the ratchet wheel and the shaft 448 do not aline but, when the shaft 48 is forced out of its normal position by turning a nut 104, theiholes in the shaft and ratchet wheel 23 will come into registration, after "which by rotating the Abeing done, the operator depresses the lever .71 `which unlocks the latter from the shaft lshaft the springs 100 will force the pins 101 outward into the holes in the ratchet wheel 47 and, at the same time, the pins 102 will be forced outward until their ends protrude beyond the circumference of the ratchet wheel. Thus locked to the` shaft 48, the. Wheels 47 will rotate "witli'the shaft 48 until the pins 101 comefundferthe pawls 105, acted upon by the spring 106, .shownvcl'early in Fig. 2 of the drawings. The pawls 105 `will drive the pins 101 backfush `with the surface of the ratchet Wheelv and unlock the ratchet wheels from the shaft 48. At this position all of thel wheels-,48 show zeros at the windows 107. Mounted adjacentl to each of 'the sight apertures or windows 35, 107 #and 108 are the slides 110 having pointers 111 thereon, as shown clearly in Fig. 1 of the drawings, and which are util' ized to represent declmal points. 85 In order to demonstrate one of the fea tures accomplished by my improved apparatus, we will. supposepit is desired to mul-l tiply the numerals 42 by 16,900 and subtract 5,450 and divide the'result by 52. The first step in accomplishinv this is to depress the third, fourthand fifth keys 10 and pushthe levers carrying the same rearward until the` numerals 16,900 show in the consecutive sight apertures 108, after which thecrank,vv shaft 21 is given two complete revolutions v and the numeral 2 will appear in the unit or".l first window or .sight aperture 107. 'This 5, which will allow the up r casing 2 to be moved independent of t e Vlower casingv which always remains stationary. Thev upper casing is moved one space to the right, after which the crank is' rotated until the multiplier 4' appears at the' window 107. This being accomplished, the product -of 16,900 multiplied by 42, .which will make a product of 709,800 will appear at the sight apertures or windows 35. is then returned'to its starting position 31nd the keys 10 are depressed and the leversj carrying the same moved forward so that the numerals 5,450willappear at the sight apertures 108, after which.y the crankshaft'is 115 rotated once in thev reverse order fromf the rotation of the shaft in. making the other cale culations and `the numerals l704,3501willappear at the sight apertures of windowsv The wheels which bear the numerals visible ling, then the crank shaft 1s rotated 'a L30 its The upper casing 1 10 direction vreverse to the movement ofthe aperture 35 the numeral 1.

hands of a clock one revolution and the hundred thousands place will show at' the sight As 1 is less than 5 (the left figure of the divisor), the upper case is shifted one space toward the left after which the crank is rotated until' a ligure less than 5 appears at the'gten thousand lace in the window 35'. .lo

This is continue until the windows 35 display less than Windows 108. In the present instance, numeral will appearI in windows '35 and windows 1.0.7 will now show-13,545 which is the quotient'soughtand 10, the numeral .diss played at' the windows 35, will bel the remainder. Y

f By the rovision vof a calculating apparatus -as s own and described, it will be n; 1 ab set 3. A calculating machine having a stationary and a movable casing, a rotatable mounted numeral bearing wheels carried by'.

is rotated, saidv wheels'v may 4readily understood that the machine is. jequally well adapted for addition or multi? iplication which are the 'reverse of subtraction and division and that the 'apparatus is so arranged that the shaft may be turned in either direction andthe numerals indicated gat the proper sight apertures.

- What I claim to be new is l. lA calculating machine havmg a stationary and a movable casing, a rotatablecasing, means for throwing said guides in to the paths of thep'awls, and pins projecting .from correspondmg faces of said wheels and ada ted to be engaged by said pawls, as

orth.

shaft mounted in the movable casing, loosely said shaftand pawls rotating with the latter,

`spring-pressed pawl guides mounted upon the stationary casing, means for moving said guides into the paths of said pawls, and to cause the latter to 'engage and allow a rotary movement to be imparted to the numeral bearing wheels, as set forth.

.4. A vcalculating machine having a Istationary.l and a movable casing, a rotatable shaftmounted in the movable casing, loosely.

mounted numeral bearing wheels carriedby saldv shaft and pawls rotating with the shaft, s ring-pressed pawl guides mounted upon `t e statlonary casing, movable bars fol-{raising saidvguides into the paths of. said pawls, and means carried b the wheels and engaged bysaid pawls or im arting a rotary movement to the numeral `caring wheels,` as set forth.

5. A calculating machine having a stationary and a movable casing, a 'rotatable shaft mounted in the movable casing, loosely mounted numeral bearing wheels carried by said shaft and pawls rotating with the shaft,

spring-pressed pawl guides mounted -upon the stationary casing, movable bars for raising said guides into the paths of said pawls,

projections upon corresponding faces of said -Wheels which are engaged by said pawls to cause 'a rotary movement to be imparted to "the numeral carrying wheels, as set forth.

6. A' calculating machine having a stationary and a movable casing, a rotatable shaft mounted in the movable casing, loosely mounted numeral bearing wheels carried by said shaft and pawls rotating with the shaft,

spring-pressed pawl guides mounted upon l o ectins upon each the stationary casing,

ar adapted vto enpr of said guides, a mova le gage sa1d projections and raise the guides into the paths of said pawls, pins projecting from the wheels and engaged by said pawls whereby a rotary movement is imparted to the numeral bearingvvheels, as set forth.

7. A calculating machine having a stationary and a movable casing, a rotatable shaft mounted in the movable casing, loosely mounted numeral bearing wheels carried by said shaft and pawls rotating with the shaft, springpressed pawl guides mounted upon the stationary casing, projections upon each of said guides, a movable bar having a beveled portion adapted to engage said pro jections upon the guides whereby the-latter may be raisedinto the paths of said pawls, pins projecting from the wheels and engaged by said VaWls whereby a rotary movement may be imparted to the numeral bearing wheels, as set forth.

8.A calculating machine having ay stationary and a movable casing, a rotatable 9. A calculating machine having a sta-- l tionary and4 a movable casing, a'lrotatable shaft mounted in the movable casing, loosely mounted numeral bearing wheels carried by said shaft and pawls rotating with the shaft,

.movable pawl guides mountedv in the lstamounted numeral bearing wheels carried by said shaft and pawls rotating with the shaft, movable pawl guides mounted in the s tationary casing and having beveled portions,

4. the upper ends of said guides being concaved, movable bars for raising said guides into the paths of said pawls, a key pivoted to eah of said movable bars, a spring bearing against each key and adapted to normally hold the end thereof in engagement with a notch within the stationary casing, pins projecting from said wheels and adapted to be engaged by said pawls, whereby a rotar movement may be imparted to the whee s, as set forth. 4

11. A calculating machine having a stationary and a movable casing, a rotatable shaft mounted in the movable casing, loosely mounted numeral bearing wheels carried 4by Said shaft and pawls rotating with the shaft,

wl guides having shank portions mounted 1n slots within the stationary casing, springs mounted upon the shank portions of said guides and adapted to normally hold the same at their lowest limits, a pin projecting from each guide, a series of movable bars each' having a beveled portion, keys upon said bars adapted to move the same underneath said pins and cause the guides to be raised to operative positions in the paths of 'said pawls, ins projecting fromv the wheels and engage by said pawls whereby rotary movements may be imparted to the numeral bearing wheels, as set forth. j j

l2. A calculating machine having a stationary and a' movable casing, means for locking the casings together, aA shaft mounted in the movable casing, numeral bearing wheels loosely journaled upon 'said shaft, spring-pressed pawls rotating with the shaft, a series of pawl guides, means for moving the same into the paths of said pawls, ins projectin from said wheels and engage by said paw sv whereby Vrotary movements may be imparted to the Wheels,v as set forth.

, 13. A, calculating machine havinga stationary Aand a movable casing, means for locking the casingstogether, a shaft mounted in the movable casing, numeralbearing wheels' loosely journaled upon-said shaft, pivotal springpressed pawls rotating with the shaft', 'a seriesof pawl guides, means for :movingthe same into the paths of saidl pawls, pins projecting from said wheels and engaged by said pawls whereby rotary movements may be imparted to the wheels, as set forth.

14. A calculating machine having a stationary and a movable casing, means for locking the casings together, a shaft mounted in the movable casing, numeral` bearing wheels loosely journaled upon said shaft, pivotal'spring-pressed pawls rotating with the shaft, each of the latter having a beveled portion, a series of pawl guides, means for moving the same into the paths of said pawls,pins projecting from said wheels and engaged by said pawls whereby rotary movements may be imparted to the wheels, as setforth.

15. A calculating machine having a stationary and a movable casing, means for tionary and a movable casing, means for locking the casings together, a shaft mounted in the movable casing, numeral bearing wheels loosely journaled upon said shaft, pawl carrying segments fixed to rotate with said shaft, a pivotal pawl mounted in a slot in each of said segments, a spring bearing between each pawl, pins projecting from the faces of said wheels, pawl guides mounted within the stationary casing, and means for moving the s ame into the paths of said pawls whereby the latter may be thrown into engagement with said pins as t-he shaft. is rotated, as set forth.

17. A calculating machine having a stationary and a movable casing, means for locking the -casings together, a shaft mounted in the movable casing, numeral bearing wheels loosely journaled upon said shaft, pawl carrying segments fixed to rotate with said shaft, a pivotal pawl mounted in a slot in each of said segments, a spring fixed to each segment and bearing against said pawl and adapted to normally hold the latter out of the paths of said pins', pawl guides mounted upon the stationary casing, means for 'moving the same into the paths of said pawls whereby, as the shaft is rotated, the pawls are thrown intov engagementwith the teeth Vof said wheels to cause the same to rotate, as set forth. f y

18. A. calculating machine comprising a fixed and movable casing, a shaft mounted upon said movable casing, numeral bearing l. wheelslo'oselymounted upon said shaft, pins projecting from said wheels, segment carrying pawls mounted upon saidl shaft and having loose key connections with the latterV wherebythe segments may have independent movements upon -a movable pawl mounted ,l upon each segment, pawl guides'within theI stationary casing, means for movino` the same inthe pathsof said pawls whereby, as the shaft is rotated, the pawls may be thrown into engagement with said pins to cause the` numeral 'bearing wheels to rotate with the shaft,fas set forth.

- 519. A calculating machine .comprisinga vfixed and a' movable casing,.a rot'atable shaft journaled in the'movable casing, a series of numeral bearing wheels loosely mounted uponI saidk shaft, pawl carrying segments fixed to rotate with said shaft, a pawl carried by each of said segments,"pins projecting 'from said Wheels, \,pivotal 4pavvl vguides mounted upon" the-jmovable casing, and-l means .carried by said wheels for moving the pivotal guides into the paths -of said pawls, as set forth;

20. A calculating machine comprising a fixed and a movablexcasing, a rotatable shaft journaled in the movable casing, a series of4 numeral bearing wheels loosely mounted upon said shaft, pawl carrying segments fixed to rotate with saidA shaft, -a pawl carried by each of said segments, pins projecting fromA said wheels, lpivotal awl guides mounted upon the movable casing, means carried by said wheels for movingthe pivotal guides into the paths of said pawls, and mechanism for holding the pivotal' guides in the path of said pawls, as set forth. f

21. A calculating machine comprising a fixed and a movable casing, a rotatable shaft j ournaled in the movable casing, a series of ynumeral bearingwheels loosely mounted upon, said shaft, pawl carrying segmentsfixed to rotate with` said shaft, a pawl carriedby each of said segments, pins projecting4 from said wheels, pivotal pawl guides mounted upon vthe movable casing, a spring-pressed paWl carried by the movable casing and held yieldinglyy between said pins, a series of pawl guides, and means for moving the same intothe paths of said pawls, as set forth. f

22. A calculating machine comprising a fixed and a movable casing, a rotatable yshaftl journaled in the movable casing, a series of .numeral bearingwheels loosely mounted upon y ing from-said Wheels,

fixed and a movable casing, a rotatable shaft .journaled in the movable casing, a seriesof numeral bearing wheels loosely mounted upon sa1d`shaft, pawl carrying segments 7fixed to rotate with said shaft, a pawl carkried by each of said segments, pms projectin'g from said wheels, pivotal pawl guides mounted'uponthe movable casing, lugs projecting from the faceso'f said wheels and in-V the paths of said guides and adapted to throw` theguides into the paths of said pawls, and means for holding the Guides in l l*the pathsof said pawls, as set fort i.

24. A calculating machine comprising .a fixed anda' movable casing,'a rotatable shaft journaled in the movable casing, a series of numeral. bearing wheels loosely mounted upon said' shaft, pawl carrying segments fixed to rotate with said shaft, a pawl carried by each of said segments, pins project'-l ivotal pawl guides mounted upon the mova le casing, lugs projecting from the; faces of said wheels andin the paths of said guides and adapted` to throw the guides into the paths of said pawls, a rocking member mounted in the movable casing,- means carried thereby for engaging said guides and holding the same in the paths of said pawls, and mechanism for moving said member as the shaft is rotated, set forth.

25. A calculating .machine comprisinga fixed and a movable casing, a rotatable shaft journaled in the movable casing, a series of numeral bearing wheels loosely mounted upon saidv shaft, pawl carrying segments fixed tol rotate with saidshaft, a pawl carried by each of said segments, pins projecting. from said wheels, pivotal pawl guides mounted upon the movable casing, lugs projecting from the faces of said.. Wheels and in y the paths of said guides and adapted to a throw the guides into the paths of said pawls, a rocking member mounted in the movable casing, spring-pressed pins carried by said member and-designed to engage and hold said guides. in the paths .of sald pawls as the shaft is rotated, as set forth.

, 26. A calculating machine comprising-La. fixed and a movable casing, a rotatable` journaled in the movable casing, a series of numeral bearing wheels loosely mounted upon said shaft, pawl carrying segments fixed to rotate with s aid shaft, a pawLcaa'-` ried by each of said segments, pins.v projecting from said Wheels,.fpivotal pawlguides" mounted upon the movable casing, lugs projecting from thc faces of 'said wheels and in the paths of said guides and adapted to throw the guides into the paths of said movable casing, .spring-pressed pins carried lby said member, a cam rotating with said v.shaft and adapted to normally hold said spring-pressed pins out of the paths'of said pawls, a rocking member mounted in the guides, and springs for throwing said member so that the pins mounted thereon will engage and hold the guides in the paths of the pawls, as set forth. 1

27. A calculating machine comprising a xed and a movable casing, a rotatable shaft journaled in the movable casing, a series of Inumeral bearing wheels loosely mounted upon said shaft, pawl carrying segments lfixed to rotate with said shaft, a pawl carried by each of said segments, pins projectf-mvi'pg from said wheels, pivotal pawl `guides mountedupon the movable casing, lugs projectingfrom the faces of said wheels and in ,x the paths of said guides and adapted to throw. the guides into the paths of said pawls, a rockingmember mounted in the i upon said shaft, pawl carrying. segments fixed .to rotate with said shaft, a paawllcarried by eacheofsaid segments, pins project- Ling from said wheels, iv'otal pawl guides v mounted upon the mova le casing, lugs proj86,jecting from the faces of said wheels and in 'the paths of said guides and adapted to -throw the 'guides into the aths of said .pawls, a bail-shaped mem er lpivotally moun'ted within the movable casing, a 40 spring-pressed pin carried' by said member,

one end of the member havin a cam projection, aring fixed to the sha t and having a, cam designedv to engage said cam projection when t-he shaft is at rest to normally X holdl the spring-pressed pin out ofl engagement with said guide, as set forth. 'i 29. A calculating machine comprising a fixed and a movable, casing, a rotatable shaft journaled in the-movable casing, a series of numeral bearing wheels loosely mounted upon said shaft, pawl carrying segments fixedto rotate with said shaft, a pawl carried 'byffeach of .said segments, pins projecting from said wheels, pivotal pawl guides mount- .55 -ed upon the movable casing, a spring bearing against each of said guides and adapted to hold the free end of each in the paths of said pins upon the numeral bearing wheels, bailn' shaft and each havinga cam tooth adapted shaped rocking members, spring-pressed'. e pins carried by said members, springs adaptto Contact with the vcam projection upon the arm of one of said members to hold the outer portions of the members raised above said guides, as set forth.

30. A calculating machine comprising a fixed and a movable casing, a rotatable shaft journaled in the movable casing, a series of numeral bearing Wheels loosely mounted upon said shaft, pawl carrying segments fixed to rotate with said shaft, a pawl carried by each of said segments, pins projecting from said Wheels, spring-pressed pawl guides mounted upon the movable casing, the free end of each guide being wedge shaped in cross section and positioned in the paths of lugs upon one of said numeral bearing wheels, a rocking bail-shaped member mounted upon the movable casing and having a series of shouldered apertures therein, a shouldered pin seated in each of said apertures, a spring bearing against each pin and adapted to normally hold the same projecting through the end of the aperture in which it is mounted, a cam projection upon the arm of each of said bail-shaped members, rings fixed to the' said shaft and each having a cam tooth adapted to contact with the cam projection upon said member, as set forth.

43 1. A calculating machine comprising a 95 movable and a fixed casing, means for locking the two casings from havin independent movements, a shaft mounted within the movable casing, numeral bearing wheels loosely journaled thereon, pins lprojecting from said Wheels, pawl carrying` segments rotating vwith the shaft, a movable pawl mounted upon each segmen a series of pawl guides mounted within the fixed casing, means for moving said guides into the aths of said pawls, and. means for locking said shaft from rotation, as set forth.

32.A calculating machine comprising a fixed anda movable casing, a shaft j ournaled in said movable casing, a series of numeral bearing wheels loosely mounted upon said shaft, pawl carrying segments-rotating with said shaft, means for causing said wheels to move with said segments, 'a second shaft carried by the movable casing, numeral bearing wheels upon said second shaft, and means for imparting an intermittent rotary movement to the latter as said segment carrying shaft makes a complete revolution, as set forth. 120

' 33. A calculating machine comprising a ixedand a movable casing, a shaft mounted in said movable casing, awl carrying segments rotating with sai shaft, means for causing said wheels to rotate with said segments, a swinging bar mounted within the movable casing, means for moving said bar as the shaft is rotated, a pawl carried by said bar, a second shaft, numeral bearing :wheels ,upon the latter, a\ ratchet wheelmounted upon said second shaft .and adapted to be engaged by the pawl upon said bar, as set forth.

34. A calculating machine comprising a fixed anda movable casing, a shaft mounted in said movable casing, (pawl carrying segments rotating with sai causing said Wheels to, rotate with said segments, a swinging bar mounted Within-the for moving said bar movable casing, means as the shaft is Irotated, a pawl carried by said bar, a guide for said pawl, a. second movable casing, means for movin said bar as the shaft is rotated, a pawl carrier mounted upon said bar, a pawl upon said carrier,'a second shaft within the moving'casing, nu-

meral bearing wheels thereon,'a ratchet wheel upon said second shaftand adapted to be en" gaged jby said awl, and guides for the pawl carrier, as set orth.

36. A calculating machine comprising a fixed and a movable casing, a shaft mounted in said movable casing, pawlcarrying segments rotating withsaid shaft, means for causing said wheels to rotate with said segments, a swinging bar mounted within said)- casing and having a cam projection thereon,

means upon said shaft for engagement with said cam projection for causing the bar to. swing at each revolution of the shaft, a pawl carried by said bar, a second shaft mounted within the movable casing and having numeral bearing wheels thereon, a ratchet wheel mounted'uponsaid second shaft and adapted to be' engaged by said.pawl, as set forth.

. 37. A Acalculating machine comprising a fixed and a movable casing, a shaft mounted in said movable casing, pawly carrying seg-y ments rotating with said shaft,.means for causing said wheels to rotate with said se ments, a swinging bar mounted within said' casing and having a cam pro ection thereon,

a ring fixed to said shaft an havin a` cam tooth designed at each'revolution of t e shaft tocontact with said cam projection upon the bar and cause the same to be raised, a pawl carried by said bar, a second shaft mounted withinY th ,neal bearing wheels thereon, a ratchet wheel upon said vsecond shaftladapted -to be en# e movable casing and having nu`- gaged byv said pawl, andmeans for holding said ratchet Wheel from rotation 'in one direction, as set forth.

38. A calculating machine comprising a fixed and a movable casing, a shaft mounted shaft, means fory y bearing in said movable casingypawllcarrying' seg-v' ments rotating with causing said wheels to rotate with said seg# ments, a bail-shaped swinging bar mounted within the movable casing, means for causino' said movable bar to swing at each revoliition of said shaft,l a `pawl carrying member loosely mounted upon-the swinging bail portion of said bar, a pawl carried? by said member, a second shaft `mounted within the movable casin numeral bearing wheels thereon, a ifatc et wheel upon said second shaft and engaged by said pawl,'as set forth.

39. A calculating machine comprising a v fixed and a movable casing, a shaft mounted in said movable casing, awl carrying seg ments rotating withI sai ments, a bail-shaped swinging'bar 'mounted within themovable casing, means for causing ber loosely mounted upon the'swinging bail portion of said-bar, a awl carriedby said member, guide plates etween which, said pawl is mounted, a lug upon the latter, a pinv mounted between `said guide plates and against which said pawl is adapted to contact, a second shaft mounte'd within theI movlable casing and having a series of numeral bearing wheels thereon, a ratchet wheel mounted uponv said segment shaft and adapted to be engaged by said pawl, asset forth.

40. A calculating machine comprising a fixed anda movable casing, a shaft mounted said movable bar to swing at each rev' olution -of said shaft, a pawl carryinginein-v shaft, means for causing said wheels to rotate with said segupon the movable casing, a series of numeral bearing wheels loosely ournaled thereon, means foi` impartinor a movement to said numeral bearing whee s, a second shaft mounted within the movable casing, numeral bea'i'- ing wheels thereon, means for imparting an intermittent movement to one of the numeral mechanism for transmitting intermittent rtary movements from one wheel to another upon said second shaft, as set forth.

41. fixed and a movable casing, a shaft mounted in the movable casing, a series ofnumeral bearing Wheels upon said shaft, means for im artin 'al movement to said wheels, a'sccond sha mounted ywithin said movable casing, a series of independently movable numeral bearing wlieelsthereon, a ratchet.

wheel upon said 'second shaft, means for imparting an intermittent movement to the latter as the first referred to shaft is rotated.

a rocking pawl carrying member, a ivota'l i said mem er, a lug movab e with pawl upon said second shaft and .adapted to contact 'with thelug upon said member I whereby a 'movementmay be imparted to the next adjacent numeral bearing' wheel upon said second shaft, asset forth.

wheels upon said second shaft, and f ies Acalculating apparatus comprising'a i 42. A calculating apparatus comprising -a fixed and a movable casing, a shaft mounted in the movable casing, a series of numeral bearing wheels upon said shaft, means for imparting a movement to said wheels, a second shaft mounted within said movable casing, a series of independently movable numeral bearing wheels thereon, ratchet wheels upon said second shaft, means for imparting an intermittent movement to the latteras the rst referred to shaft is rotated, a spring-pressed pawl carrying member having a lug projecting from one end thereof, a pawl pivotally mounted upon said membei', a lug rotating with the second shaft and adapted to contact with the lug of said meniber for imparting an intermittent movement from one of the numeral bearing Wheels upon the second shaft to the next adjacent wheel thereon, as set forth.

43. A calculating machine comprising a fixed and a movable casing, a shaft mounted in the movable casing, a series of numeral bearing wheels loosely journaled thereon, means for causing the wheels to rotate with said shaft, a second shaft mounted within the easing,` a series of numeral bearing wheels thereon, means for transmitting motion from the wheelsn-pon one shaft to those upon the other, saidisecond shaft having a spring-pressed pin mounted in a transverse aperture therein, a spring-pressed pin mounted iii an vaperture in each numeral wheel upon said second shaft, and means for imparting a longitudinal movement to the latter to bring said pinsinto alinement, whereby the second shaft and the lpinion wheels may be locked to rotattl together, as set forth. i

44. A calculating machine comprising a fixed'and a movable casing, a shaft mounted in the movable casing, a series of numeral bearing wheels looselyy journaled thereon, means for causing the wheels to rotate with said shaft, a .second shaft mounted Within the casing, a series of numeral bearingl wheels thereon, means for transmitting motion from the wheels upon one shaft to those upon lthe other, said second shaft having a spring-pressed pin mounted in a transverse aperture xtherein, a spring-pressed pin mounted in an aperture in each numeral wheel upon said second shaft, means for imparting a longitudinal movement to the latter to bring said pins into aliiiement,

whereby the second shaft and the pinion wheels may be locked to rotate together, and means for unlocking said numeral bearing wheels after they have returned to their starting positions, as set forth.

45. A calculating machine comprising a fixed and a movable casing, a shaft mountedv in the movable casin a series of numeral bearing Wheels loosey )oiirnaled' thereon, means for causing the wheels to rotate with ,corresponding faces of said wheels beii l recessed, a lateral projection from thewa of each recess,l awl carrying segments, keys' fixed to said s aft and adapted to engage said shaft, a second shaft mounted Within the casing, aseries of4 nume-ral bearing wheels thereon, means for transmitting motion from the wheels upon one shaft to those upon the other, said second shaft having a spring-pressed pin mounted in a transverse aperture therein, a springpressed pin mounted in an aperture in each numeral wheel upon said second shaft, and a springpressed pawl mounted in the path of one of said pins adapted to move the same within the apertures in which they are mounted, as set forth.

4,6A calculating machine comprising a fixed and a movable casing, a shaft mounted in the movable casing, a series of numeral bearing wheels loosely journaled thereon, means for causing the Wheels to rotate with 'said shaft, a second shaft mounted Within movable and a fixed casing, a shaft mounted i in said movable casing, a series of'numeral bearing Wheels loosely mounted thereon, the corresponding faces of said wheels being recessed, a lateral projection from the Wall of each recess, said shaft having a longitudinal movement, and means carried by the latter for engagement with said pro]ection whereby said Wheels may be returned to their` starting positions, as set forth.

48. A calculating machine comprising a movable and a fixed casing, ay shaft mounted4 in said movable casing, a series of numeral bearing wheels loosely mounted thereon, the vcorresponding faces on said wheels being recessed, a lateral projection from the wall of each recess, pawl carrying segments, keys fixed to said shaft and adapted to engage recesses in the bore of each segmentcarrying member, said shaft adapted to have a longitudinal movement whereby said keys may be thrown into the paths of said projections upon the numeral bearing wheels. as set forth.

49. A calculating machinecomprising a movable and a fixed casing, a shaft mounted in said movable casing, a series of numeral ias A bearing wheels loosely mounted thereon', thej.

recesses in the bore ofjeach segment carrying member, said shaft adapted tofhave a long1" tudinal movement whereby said'k'eys maybe als leach lrecess, pawl carryin thrown into the paths-.ofisaid projections upon the numeral bearing4 wheels, andme'ans- .fonimparting `a longitudinal movement to said shaft, as set forth.

50. A calculating machine comprising a movable and a fixe'd casing, a shaft mounted in said movable casing, a series of numeral 'bearing-wheels loosely mounted thereon, the

,the end of said shaft to impartza'lon'gitu i-' nal movement thereto, as 'set'for'th 51, A' calculatin' machine 'comprising 'a movable and a fixe' casing, a shaft n i'ountedy in Isaid'movable casing, a series-of numeralbearing wheels loosely mpunted thereon, the' corresponding facesefsaid wheels being recessed, a lateralprojection from .thewa 1 segments, keys each recess, pawl. carrying fixed to. each shaft an a apted to engage recesses in the b oreofeach segment carry- .ing member, said shaft, adapted'to have-a longitudinal movementlv whereby said keysl may be thrown into the paths of said projections upon the numeral bearing wheels,

f movement thereto, and' a spring for returnla movablel member" adapted to engage the end of said shaft toimpart allongitudin-al ing said shaftsto its normal position, as -set forth. j l

52. A calculating machine comprising a movable and a fixed casing', a shaft mounted in said movable casing, a series of numeral bearing wheels loosely mounted thereon, the

corresponding faces of said wheels being recessed, 'a lateral projection from tliewall of each recess, pawl carryin segments, keys fixed to each shaft and a apted'to4 engage recesses in the bore of each segment carry-- ing` member, said -shaftadapted to have a longitudinal movement whereby said keys may be thrown into the paths of said projection upon the numeral bearing wheels,

and a movable wedge shaped member adapted' to engage said lshaft to Vimpart a longitudinal movement thereto, as setforth.

53. A calcul-ating machine comprising 'a i movable and afixed casing, a shaft mounted`- in said movable casing, a series ofnumeral bearing wheels loosely mounted thereon',the;`

corresponding faces of said wheels bein'f-"'re' .:cessed, aglateral projection from the walf'of I y each \ecess npawl car in segments keys L# fixe to eafzh shaft Idy ada in said movable casing, a series of numeral bearing wheels loosely mounted thereon, means for' moving the wheels with said shaft, a crank fixed to said shaft, a 'spring-pressed catch adapted to engagesaid crank' to lock the same from rotation, as set'forth.

A calculating machine comprising a ixedand a movable casing, a shaft-mounted 'in 4said movable casing, a series of .numeral 'bearing wheels loosely mounted thereon,

means'for moving the wheels with said shaft,- `a crank fixed to said shaft, and a-pivotal catch mounted upon the lcasing and adapted to hold said crank from rotation, as set forth. 56. 'A calculating `machine comprising a .fixed and am'ovable casing, a shaft mounted pin"said-movable casing, a series of numeral bearing wheels loosely mounted thereon, -means for 'moving the wheels with said shaft, a crank fixed to' said shaft, a `spring-pressed 'catch lever pivotally mounted uponthe casingand having'a finger projecting laterally `,from thecasin and notched, a lug upon said handle' and av apted tobe. engaged by said ,notchedfingem and means`r for moving said catch lever gut of the path of said lug, as set 4forth,I e' Y f '57.; A,y calculating machine comprising a bearing yWheels loose y mounted thereon, means formovingthe wheels with said shaft,

loo

a crank fixed 'to said shaft, 'a spring-pressed catch lever pivotally mounted upon the'casing and having' a fin er projecting laterally from the ca'sin' .anti said handle an adapted to be engaged by said notched finger, a second projection upon said'catch lever extending through an aperwherebysaid leverlmay be moved out of the path of the lug upon the handle, as set forth.

58. In combination, in a calculating a paratus, a fixed and ay movable casing, a s a ournaledfin said movable ca singi', numeral ea'ringi wheels loosely mounte thereon,

notched, a lug upon .115 ture infthe casing and aording means means for causingaid wheels and shaft to l.

be moved-.'-togetliea crank handle fixed to said handle', vapiiotatl slr1ifting lever mounted inthe fxed-casing, aicross bar havin a segment end 'at rightangles thereto w ich 1s notched and -pivoted tothe casing,"s aid shift' ing lever' having an angled portion en aging pted to engage averse-id .'cross'bar adapted to hold't e two casings from having independent movements, a catch lever mounted Within the casing and having a projection designed to seat in the slot in said segn'ient of the cross bar and also engage and lock said handle.

59. A calculating machine having a fixed and av movable casing, standardswithin the fixed casing, hollow shafts mounted in said standards, notches in said shafts, rods carried by the movable casing and telescoping within said hollow shaft, .notches in said shafts engaged by said shifting` levers Whereby the two casings may be locked together, as set forth.

60. A calculating machine having a stationary and a movablfl easing, a rotatable shaft mounted in the mo vable casing, loosely mounted numeral bearing Wheels of dierent orders upon said shaft, segments mounted to rotate with said shaft and representing different orders of numerals, mechanism so arranged that the various pawls in order will fall one behind another as the order increases as the shaft is rotated in one direction or the other, pawls carried by said segments, and

means actuated by the paivls for imparting a rotary movement to the numeral bearing wheels, set forth. l y

(31. A calculating machine having` a stationary and a movable casing, a rotatable shaft mounted in the movable easing, loosely mounted numeral bearing Wheels of diferent orders upon said shaft, segments mounted to rotate With said shaftand representing different orders of numerals, mechanism so arranged that the various paWls in order Will fall one behind another as the order increases asl the shaft is rotated in one direction or the other, pivotal spring-pressed paWls mounted upon said segments, projections upon the'wheels engaged by said paWls to rotate the Wheels, and means for throwing the pawls iinto the path of said projections, as set forth.

In testimony whereof VI hereunto aix my 

